Telephone signal device



Jan. 5, 1937. H. TREWORGY 2,066,434

TELEPHONE .SIGNAL DEVICE Filed Feb. 25, 1936 Inventor #87'070 E. flea/01y? g 4 a A tlomeys Patented Jan. 5, 1937 UNITED STATES PATENT OFFICE TELEPHONE SIGNAL DEVICE Harold E. Treworgy, Brunswick, Maine Application February 25, 1936, Serial No. 65,668 lClaim. (01. 179-84) This invention relates broadly to telephone subscribers sets and more particularly to a signal device for use in connection with such sets whereby one of several phones may be distinguished therefrom in order that one may tell which one of several phones in sight is ringing.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawing wherein the single view is a view partly in section and partly in elevation illustrating the application of the invention to a telephone subscribers set of the French or Hand type.

Referring now more in detail to the drawing it will be seen that in the preferred embodiment of the invention there is mounted in the hollow of the hand grip 5 of the set an electro-magnet 6 which is arranged in the usual bell circuit of the telephone through the medium of the wire I. Arranged in operative position to the magnet I5 is an armature 8 pivoted as at 9 on a post II? suitably fixed within the hollow of the hand grip. The armature 8 is normally releasably retained in a position to be attracted by magnet 6 through the medium of a suitable spring II anchored at one end as at I2 within the hollow of the hand grip.

An indicator button l3 has a sliding fit within a suitable opening provided in the hand grip 5 and at its inner end the button I3 is arranged to be engaged by one end of the armature 8 whereby the button I3 will be projected outwardly to the position shown in the drawing when the magnet 6 is energized and causes the armature 8 to rock to the position shown.

A release button It has a sliding fit within an opening in the hand grip 5 adjacent the anchored end of the spring I I and at its inner end the button I4 engages the spring I I in a manner to normally urge the same into operative engagement with the adjacent end of the armature 8.

Normally the armature 8 is in a substantially horizontal position; releasably held in that position by reason of the engagement of the free end of the spring II with an adjacent end of the armature. Also button I3 is normally in its inwardmost position. I

When the usual telephone bell rings the circuit to the magnet 6 will be completed whereupon the armature 8 will be attracted and caused to swing to the position shown in the drawing; When the armature 8 rotates to the position shown the end thereof normally engaged by the springv II will engage the button I3 to project the latter to the position shown. Thus with the button I3 which may be colored red or any other suitable color in the position illustrated in the drawing a person will know that it is the bell of that particular phone which is ringing and thus where several phones are arranged more or less near one another one may readily pick out which of the several phones is ringing.

When the hand piece is lifted from the holder of the set the circuit through the magnet 6 will be interrupted permitting the armature 8 to return to its normal position and the button I3 to drop back to its normal position.

The parts will remain in this position even after the hand set has been replaced until such time as the bell of the phone again rings.

Having thus described the invention, what is claimed as new is:

In a telephone subscribers set, a receiver having a hollow hand grip, an electro-magnet mounted in the hollow of said hand grip and adapted to be arranged in circuit with the bell of the set, a post mounted in said hollow, an armature pivotally mounted intermediate its ends on said post and having an end arranged in operative position to said magnet, an indicating button having a sliding fit within an opening provided in said hand grip, said armature having an end engageable with the inner end of the button for projecting the latter when the armature is caused to rotate incidental to an energization of said magnet, and a spring device mounted within the hollow of said hand grip and normally engaging said armature to retain the same in a predetermined position permitting said button to normally remain in an inward position with respect to the hand grip, said spring maintaining the armature in energized position after its initial movement by the electromagnet, and a release button positioned at the underside of the handgrip and engageable with supporting means for the handgrip when the latter is at rest to move the release button inwardly for contacting the spring to main tain the latter in armature engaging position and said release button moving out of contact with the spring when the handgrip is raised bodily. HAROLD E. TREWORGY. 

